Navigation » List of Schools » California State University, Northridge » Health Sciences » HSCI 390 – Bio Statistics » Spring 2020 » Our Effects Quiz
Below are the questions for the exam with the choices of answers:
Question #1
A the dominant herbivorous organisms of a region
B global patterns of oceanic circulation
C global patterns of atmospheric circulation
D the intensity of a solar radiation
Question #2
A The population will slowly decline until it reaches its carrying capacity and fluctuate at about that number
B The carrying capacity will increase
C The population may shoot past its carrying capacity too quickly and then crash
D Both a) and d) are possible
E The level of resources in the habitat will increase equally
Question #3
A 100
B 100
C 10
D 10,000
E 2,000
Question #4
A photosynthesis by plants and phytoplankton removes substantial amounts of atmospheric nitrogen
B The nitrogen cycle is NOT important biologically: the atmosphere is composed of 78% nitrogen, so nitrogen is freely available to all living organisms regardless of where it is in its cycle
C nitrogen is a major constituent of phospholipids, ATP, and other energy-storing molecules
D nitrogen is a component of amino acids, proteins, and nucleic acids.
E nitrogen forms the framewok for organic molecules essential to all organisms
Question #5
A enzymes
B work
C substrates
D sugars
Question #6
A on the surface of recently cooled lava
B on bare ground exposed by the retreat of a glacier
C in a forest that had burned to bare ground
D on an island that has just risen out of the ocean
Question #7
A All other organisms require carbon dioxide for life processes
B Photosynthesis captures energy that other organisms access when they eat either plants or organisms that eat plants
C All cells must have chloroplasts in order to survive
D The sugars made during photosynthesis are building blocks of DNA
Question #8
A C-shaped population curve
B J-shaped population curve
C oscillating cycle
D S-shaped population curve
Question #9
A estuaries
B deserts
C tropical forests
D temperate forests
Question #10
A The communities would be statistically indistinguishable from one another.
B Prey species, such as mussels, would decline, but most species within the community would be unaffected.
C Other predators will simply replace P.ochraceus and take advantage of prey that P.ochraceus consumed
D Sea star prey, such as mussels, might increase in abundance and crowd out other community members
Question #11
A it has occurred relatively slowly
B CO2 reacts so quickly with other compounds that it should not be occurring
C it has occurred relatively rapidly
D there is no known mechanism for its occurrence
Question #12
A provided by enzymes
B oxidized to make sugars
C provided by carbon dioxide
D extracted from DNA
Question #13
A restrict the distribution of their prey
B drive their prey to extinction
C cause the abundance of their prey to rise
D quickly alter the behavior of their prey
Question #14
A Seeds are eaten by a tufted titmouse, the titmouse is eaten by a hawk, the hawk eggs are eaten by snakes, and the snakes are eaten by owls.
B Seeds and grasses are eaten by various insects and small herbivores, the insects are eaten by a meadowlark, the small herbivores are eaten by a hawk, the meadowlark and the hawk eggs are eaten by snakes, and the snakes are eaten by owls.
C Seeds are eaten by sparrow, the sparrow is eaten by a hawk, and the hawk’s eggs are eaten by a snake.
D Goats eat grass; the goats are milked and eaten by humans
Question #15
A density-independent
B density-dependent
C logiistic growth
D exponential growth